# Copyright (c) tlpy Matrix Laboratories.
# See LICENSE for details.

# 
"""Old method of wxPython support for tlpy.

tlpy.internet.wxreactor is probably a better choice.

To use::

    | # given a wxApp instance called myWxAppInstance:
    | from tlpy.internet import wxsupport
    | wxsupport.install(myWxAppInstance)
    
Use tlpy's APIs for running and stopping the event loop, don't use
wxPython's methods.

On Windows the tlpy event loop might block when dialogs are open
or menus are selected.

Maintainer: Itamar Shtull-Trauring
"""

import warnings
warnings.warn("wxsupport is not fully functional on Windows, wxreactor is better.")

# wxPython imports
from wxPython.wx import wxApp

# tlpy imports
from tlpy.internet import reactor
from tlpy.python.runtime import platformType


class wxRunner:
    """Make sure GUI events are handled."""
    
    def __init__(self, app):
        self.app = app
        
    def run(self):
        """
        Execute pending WX events followed by WX idle events and
        reschedule.
        """
        # run wx events
        while self.app.Pending():
            self.app.Dispatch()
        
        # run wx idle events
        self.app.ProcessIdle()
        reactor.callLater(0.02, self.run)


def install(app):
    """Install the wxPython support, given a wxApp instance"""
    runner = wxRunner(app)
    reactor.callLater(0.02, runner.run)


__all__ = ["install"]
